/*
|
/*
|
* Copyright (c) 1982, 1986, 1988, 1990, 1993
|
* Copyright (c) 1982, 1986, 1988, 1990, 1993
|
* The Regents of the University of California. All rights reserved.
|
* The Regents of the University of California. All rights reserved.
|
*
|
*
|
* Redistribution and use in source and binary forms, with or without
|
* Redistribution and use in source and binary forms, with or without
|
* modification, are permitted provided that the following conditions
|
* modification, are permitted provided that the following conditions
|
* are met:
|
* are met:
|
* 1. Redistributions of source code must retain the above copyright
|
* 1. Redistributions of source code must retain the above copyright
|
* notice, this list of conditions and the following disclaimer.
|
* notice, this list of conditions and the following disclaimer.
|
* 2. Redistributions in binary form must reproduce the above copyright
|
* 2. Redistributions in binary form must reproduce the above copyright
|
* notice, this list of conditions and the following disclaimer in the
|
* notice, this list of conditions and the following disclaimer in the
|
* documentation and/or other materials provided with the distribution.
|
* documentation and/or other materials provided with the distribution.
|
* 3. All advertising materials mentioning features or use of this software
|
* 3. All advertising materials mentioning features or use of this software
|
* must display the following acknowledgement:
|
* must display the following acknowledgement:
|
* This product includes software developed by the University of
|
* This product includes software developed by the University of
|
* California, Berkeley and its contributors.
|
* California, Berkeley and its contributors.
|
* 4. Neither the name of the University nor the names of its contributors
|
* 4. Neither the name of the University nor the names of its contributors
|
* may be used to endorse or promote products derived from this software
|
* may be used to endorse or promote products derived from this software
|
* without specific prior written permission.
|
* without specific prior written permission.
|
*
|
*
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
* SUCH DAMAGE.
|
* SUCH DAMAGE.
|
*
|
*
|
* @(#)uipc_socket.c 8.3 (Berkeley) 4/15/94
|
* @(#)uipc_socket.c 8.3 (Berkeley) 4/15/94
|
* uipc_socket.c,v 1.4 1999/06/11 14:11:41 joel Exp
|
* uipc_socket.c,v 1.4 1999/06/11 14:11:41 joel Exp
|
*/
|
*/
|
|
|
#include <sys/param.h>
|
#include <sys/param.h>
|
#include <sys/queue.h>
|
#include <sys/queue.h>
|
#include <sys/systm.h>
|
#include <sys/systm.h>
|
#include <sys/proc.h>
|
#include <sys/proc.h>
|
#include <sys/file.h>
|
#include <sys/file.h>
|
#include <sys/malloc.h>
|
#include <sys/malloc.h>
|
#include <sys/mbuf.h>
|
#include <sys/mbuf.h>
|
#include <sys/domain.h>
|
#include <sys/domain.h>
|
#include <sys/kernel.h>
|
#include <sys/kernel.h>
|
#include <sys/protosw.h>
|
#include <sys/protosw.h>
|
#include <sys/socket.h>
|
#include <sys/socket.h>
|
#include <sys/socketvar.h>
|
#include <sys/socketvar.h>
|
#include <sys/resourcevar.h>
|
#include <sys/resourcevar.h>
|
#include <sys/signalvar.h>
|
#include <sys/signalvar.h>
|
#include <sys/sysctl.h>
|
#include <sys/sysctl.h>
|
#include <limits.h>
|
#include <limits.h>
|
|
|
static int somaxconn = SOMAXCONN;
|
static int somaxconn = SOMAXCONN;
|
SYSCTL_INT(_kern, KERN_SOMAXCONN, somaxconn, CTLFLAG_RW, &somaxconn, 0, "");
|
SYSCTL_INT(_kern, KERN_SOMAXCONN, somaxconn, CTLFLAG_RW, &somaxconn, 0, "");
|
|
|
/*
|
/*
|
* Socket operation routines.
|
* Socket operation routines.
|
* These routines are called by the routines in
|
* These routines are called by the routines in
|
* sys_socket.c or from a system process, and
|
* sys_socket.c or from a system process, and
|
* implement the semantics of socket operations by
|
* implement the semantics of socket operations by
|
* switching out to the protocol specific routines.
|
* switching out to the protocol specific routines.
|
*/
|
*/
|
/*ARGSUSED*/
|
/*ARGSUSED*/
|
int
|
int
|
socreate(dom, aso, type, proto, p)
|
socreate(dom, aso, type, proto, p)
|
int dom;
|
int dom;
|
struct socket **aso;
|
struct socket **aso;
|
register int type;
|
register int type;
|
int proto;
|
int proto;
|
struct proc *p;
|
struct proc *p;
|
{
|
{
|
register struct protosw *prp;
|
register struct protosw *prp;
|
register struct socket *so;
|
register struct socket *so;
|
register int error;
|
register int error;
|
|
|
if (proto)
|
if (proto)
|
prp = pffindproto(dom, proto, type);
|
prp = pffindproto(dom, proto, type);
|
else
|
else
|
prp = pffindtype(dom, type);
|
prp = pffindtype(dom, type);
|
if (prp == 0 || prp->pr_usrreqs == 0)
|
if (prp == 0 || prp->pr_usrreqs == 0)
|
return (EPROTONOSUPPORT);
|
return (EPROTONOSUPPORT);
|
if (prp->pr_type != type)
|
if (prp->pr_type != type)
|
return (EPROTOTYPE);
|
return (EPROTOTYPE);
|
MALLOC(so, struct socket *, sizeof(*so), M_SOCKET, M_WAIT);
|
MALLOC(so, struct socket *, sizeof(*so), M_SOCKET, M_WAIT);
|
bzero((caddr_t)so, sizeof(*so));
|
bzero((caddr_t)so, sizeof(*so));
|
TAILQ_INIT(&so->so_incomp);
|
TAILQ_INIT(&so->so_incomp);
|
TAILQ_INIT(&so->so_comp);
|
TAILQ_INIT(&so->so_comp);
|
so->so_type = type;
|
so->so_type = type;
|
so->so_state = SS_PRIV;
|
so->so_state = SS_PRIV;
|
so->so_uid = 0;
|
so->so_uid = 0;
|
so->so_proto = prp;
|
so->so_proto = prp;
|
error = (*prp->pr_usrreqs->pru_attach)(so, proto);
|
error = (*prp->pr_usrreqs->pru_attach)(so, proto);
|
if (error) {
|
if (error) {
|
so->so_state |= SS_NOFDREF;
|
so->so_state |= SS_NOFDREF;
|
sofree(so);
|
sofree(so);
|
return (error);
|
return (error);
|
}
|
}
|
*aso = so;
|
*aso = so;
|
return (0);
|
return (0);
|
}
|
}
|
|
|
int
|
int
|
sobind(so, nam)
|
sobind(so, nam)
|
struct socket *so;
|
struct socket *so;
|
struct mbuf *nam;
|
struct mbuf *nam;
|
{
|
{
|
int s = splnet();
|
int s = splnet();
|
int error;
|
int error;
|
|
|
error = (*so->so_proto->pr_usrreqs->pru_bind)(so, nam);
|
error = (*so->so_proto->pr_usrreqs->pru_bind)(so, nam);
|
splx(s);
|
splx(s);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
int
|
int
|
solisten(so, backlog)
|
solisten(so, backlog)
|
register struct socket *so;
|
register struct socket *so;
|
int backlog;
|
int backlog;
|
{
|
{
|
int s = splnet(), error;
|
int s = splnet(), error;
|
|
|
error = (*so->so_proto->pr_usrreqs->pru_listen)(so);
|
error = (*so->so_proto->pr_usrreqs->pru_listen)(so);
|
if (error) {
|
if (error) {
|
splx(s);
|
splx(s);
|
return (error);
|
return (error);
|
}
|
}
|
if (so->so_comp.tqh_first == NULL)
|
if (so->so_comp.tqh_first == NULL)
|
so->so_options |= SO_ACCEPTCONN;
|
so->so_options |= SO_ACCEPTCONN;
|
if (backlog < 0 || backlog > somaxconn)
|
if (backlog < 0 || backlog > somaxconn)
|
backlog = somaxconn;
|
backlog = somaxconn;
|
so->so_qlimit = backlog;
|
so->so_qlimit = backlog;
|
splx(s);
|
splx(s);
|
return (0);
|
return (0);
|
}
|
}
|
|
|
void
|
void
|
sofree(so)
|
sofree(so)
|
register struct socket *so;
|
register struct socket *so;
|
{
|
{
|
struct socket *head = so->so_head;
|
struct socket *head = so->so_head;
|
|
|
if (so->so_pcb || (so->so_state & SS_NOFDREF) == 0)
|
if (so->so_pcb || (so->so_state & SS_NOFDREF) == 0)
|
return;
|
return;
|
if (head != NULL) {
|
if (head != NULL) {
|
if (so->so_state & SS_INCOMP) {
|
if (so->so_state & SS_INCOMP) {
|
TAILQ_REMOVE(&head->so_incomp, so, so_list);
|
TAILQ_REMOVE(&head->so_incomp, so, so_list);
|
head->so_incqlen--;
|
head->so_incqlen--;
|
} else if (so->so_state & SS_COMP) {
|
} else if (so->so_state & SS_COMP) {
|
TAILQ_REMOVE(&head->so_comp, so, so_list);
|
TAILQ_REMOVE(&head->so_comp, so, so_list);
|
} else {
|
} else {
|
panic("sofree: not queued");
|
panic("sofree: not queued");
|
}
|
}
|
head->so_qlen--;
|
head->so_qlen--;
|
so->so_state &= ~(SS_INCOMP|SS_COMP);
|
so->so_state &= ~(SS_INCOMP|SS_COMP);
|
so->so_head = NULL;
|
so->so_head = NULL;
|
}
|
}
|
sbrelease(&so->so_snd);
|
sbrelease(&so->so_snd);
|
sorflush(so);
|
sorflush(so);
|
FREE(so, M_SOCKET);
|
FREE(so, M_SOCKET);
|
}
|
}
|
|
|
/*
|
/*
|
* Close a socket on last file table reference removal.
|
* Close a socket on last file table reference removal.
|
* Initiate disconnect if connected.
|
* Initiate disconnect if connected.
|
* Free socket when disconnect complete.
|
* Free socket when disconnect complete.
|
*/
|
*/
|
int
|
int
|
soclose(so)
|
soclose(so)
|
register struct socket *so;
|
register struct socket *so;
|
{
|
{
|
int s = splnet(); /* conservative */
|
int s = splnet(); /* conservative */
|
int error = 0;
|
int error = 0;
|
|
|
if (so->so_options & SO_ACCEPTCONN) {
|
if (so->so_options & SO_ACCEPTCONN) {
|
struct socket *sp, *sonext;
|
struct socket *sp, *sonext;
|
|
|
for (sp = so->so_incomp.tqh_first; sp != NULL; sp = sonext) {
|
for (sp = so->so_incomp.tqh_first; sp != NULL; sp = sonext) {
|
sonext = sp->so_list.tqe_next;
|
sonext = sp->so_list.tqe_next;
|
(void) soabort(sp);
|
(void) soabort(sp);
|
}
|
}
|
for (sp = so->so_comp.tqh_first; sp != NULL; sp = sonext) {
|
for (sp = so->so_comp.tqh_first; sp != NULL; sp = sonext) {
|
sonext = sp->so_list.tqe_next;
|
sonext = sp->so_list.tqe_next;
|
(void) soabort(sp);
|
(void) soabort(sp);
|
}
|
}
|
}
|
}
|
if (so->so_pcb == 0)
|
if (so->so_pcb == 0)
|
goto discard;
|
goto discard;
|
if (so->so_state & SS_ISCONNECTED) {
|
if (so->so_state & SS_ISCONNECTED) {
|
if ((so->so_state & SS_ISDISCONNECTING) == 0) {
|
if ((so->so_state & SS_ISDISCONNECTING) == 0) {
|
error = sodisconnect(so);
|
error = sodisconnect(so);
|
if (error)
|
if (error)
|
goto drop;
|
goto drop;
|
}
|
}
|
if (so->so_options & SO_LINGER) {
|
if (so->so_options & SO_LINGER) {
|
if ((so->so_state & SS_ISDISCONNECTING) &&
|
if ((so->so_state & SS_ISDISCONNECTING) &&
|
(so->so_state & SS_NBIO))
|
(so->so_state & SS_NBIO))
|
goto drop;
|
goto drop;
|
while (so->so_state & SS_ISCONNECTED) {
|
while (so->so_state & SS_ISCONNECTED) {
|
soconnsleep (so);
|
soconnsleep (so);
|
}
|
}
|
}
|
}
|
}
|
}
|
drop:
|
drop:
|
if (so->so_pcb) {
|
if (so->so_pcb) {
|
int error2 = (*so->so_proto->pr_usrreqs->pru_detach)(so);
|
int error2 = (*so->so_proto->pr_usrreqs->pru_detach)(so);
|
if (error == 0)
|
if (error == 0)
|
error = error2;
|
error = error2;
|
}
|
}
|
discard:
|
discard:
|
if (so->so_state & SS_NOFDREF)
|
if (so->so_state & SS_NOFDREF)
|
panic("soclose: NOFDREF");
|
panic("soclose: NOFDREF");
|
so->so_state |= SS_NOFDREF;
|
so->so_state |= SS_NOFDREF;
|
sofree(so);
|
sofree(so);
|
splx(s);
|
splx(s);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
/*
|
/*
|
* Must be called at splnet...
|
* Must be called at splnet...
|
*/
|
*/
|
int
|
int
|
soabort(so)
|
soabort(so)
|
struct socket *so;
|
struct socket *so;
|
{
|
{
|
|
|
return (*so->so_proto->pr_usrreqs->pru_abort)(so);
|
return (*so->so_proto->pr_usrreqs->pru_abort)(so);
|
}
|
}
|
|
|
int
|
int
|
soaccept(so, nam)
|
soaccept(so, nam)
|
register struct socket *so;
|
register struct socket *so;
|
struct mbuf *nam;
|
struct mbuf *nam;
|
{
|
{
|
int s = splnet();
|
int s = splnet();
|
int error;
|
int error;
|
|
|
if ((so->so_state & SS_NOFDREF) == 0)
|
if ((so->so_state & SS_NOFDREF) == 0)
|
panic("soaccept: !NOFDREF");
|
panic("soaccept: !NOFDREF");
|
so->so_state &= ~SS_NOFDREF;
|
so->so_state &= ~SS_NOFDREF;
|
error = (*so->so_proto->pr_usrreqs->pru_accept)(so, nam);
|
error = (*so->so_proto->pr_usrreqs->pru_accept)(so, nam);
|
splx(s);
|
splx(s);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
int
|
int
|
soconnect(so, nam)
|
soconnect(so, nam)
|
register struct socket *so;
|
register struct socket *so;
|
struct mbuf *nam;
|
struct mbuf *nam;
|
{
|
{
|
int s;
|
int s;
|
int error;
|
int error;
|
|
|
if (so->so_options & SO_ACCEPTCONN)
|
if (so->so_options & SO_ACCEPTCONN)
|
return (EOPNOTSUPP);
|
return (EOPNOTSUPP);
|
s = splnet();
|
s = splnet();
|
/*
|
/*
|
* If protocol is connection-based, can only connect once.
|
* If protocol is connection-based, can only connect once.
|
* Otherwise, if connected, try to disconnect first.
|
* Otherwise, if connected, try to disconnect first.
|
* This allows user to disconnect by connecting to, e.g.,
|
* This allows user to disconnect by connecting to, e.g.,
|
* a null address.
|
* a null address.
|
*/
|
*/
|
if (so->so_state & (SS_ISCONNECTED|SS_ISCONNECTING) &&
|
if (so->so_state & (SS_ISCONNECTED|SS_ISCONNECTING) &&
|
((so->so_proto->pr_flags & PR_CONNREQUIRED) ||
|
((so->so_proto->pr_flags & PR_CONNREQUIRED) ||
|
(error = sodisconnect(so))))
|
(error = sodisconnect(so))))
|
error = EISCONN;
|
error = EISCONN;
|
else
|
else
|
error = (*so->so_proto->pr_usrreqs->pru_connect)(so, nam);
|
error = (*so->so_proto->pr_usrreqs->pru_connect)(so, nam);
|
splx(s);
|
splx(s);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
int
|
int
|
soconnect2(so1, so2)
|
soconnect2(so1, so2)
|
register struct socket *so1;
|
register struct socket *so1;
|
struct socket *so2;
|
struct socket *so2;
|
{
|
{
|
int s = splnet();
|
int s = splnet();
|
int error;
|
int error;
|
|
|
error = (*so1->so_proto->pr_usrreqs->pru_connect2)(so1, so2);
|
error = (*so1->so_proto->pr_usrreqs->pru_connect2)(so1, so2);
|
splx(s);
|
splx(s);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
int
|
int
|
sodisconnect(so)
|
sodisconnect(so)
|
register struct socket *so;
|
register struct socket *so;
|
{
|
{
|
int s = splnet();
|
int s = splnet();
|
int error;
|
int error;
|
|
|
if ((so->so_state & SS_ISCONNECTED) == 0) {
|
if ((so->so_state & SS_ISCONNECTED) == 0) {
|
error = ENOTCONN;
|
error = ENOTCONN;
|
goto bad;
|
goto bad;
|
}
|
}
|
if (so->so_state & SS_ISDISCONNECTING) {
|
if (so->so_state & SS_ISDISCONNECTING) {
|
error = EALREADY;
|
error = EALREADY;
|
goto bad;
|
goto bad;
|
}
|
}
|
error = (*so->so_proto->pr_usrreqs->pru_disconnect)(so);
|
error = (*so->so_proto->pr_usrreqs->pru_disconnect)(so);
|
bad:
|
bad:
|
splx(s);
|
splx(s);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
#define SBLOCKWAIT(f) (((f) & MSG_DONTWAIT) ? M_NOWAIT : M_WAITOK)
|
#define SBLOCKWAIT(f) (((f) & MSG_DONTWAIT) ? M_NOWAIT : M_WAITOK)
|
/*
|
/*
|
* Send on a socket.
|
* Send on a socket.
|
* If send must go all at once and message is larger than
|
* If send must go all at once and message is larger than
|
* send buffering, then hard error.
|
* send buffering, then hard error.
|
* Lock against other senders.
|
* Lock against other senders.
|
* If must go all at once and not enough room now, then
|
* If must go all at once and not enough room now, then
|
* inform user that this would block and do nothing.
|
* inform user that this would block and do nothing.
|
* Otherwise, if nonblocking, send as much as possible.
|
* Otherwise, if nonblocking, send as much as possible.
|
* The data to be sent is described by "uio" if nonzero,
|
* The data to be sent is described by "uio" if nonzero,
|
* otherwise by the mbuf chain "top" (which must be null
|
* otherwise by the mbuf chain "top" (which must be null
|
* if uio is not). Data provided in mbuf chain must be small
|
* if uio is not). Data provided in mbuf chain must be small
|
* enough to send all at once.
|
* enough to send all at once.
|
*
|
*
|
* Returns nonzero on error, timeout or signal; callers
|
* Returns nonzero on error, timeout or signal; callers
|
* must check for short counts if EINTR/ERESTART are returned.
|
* must check for short counts if EINTR/ERESTART are returned.
|
* Data and control buffers are freed on return.
|
* Data and control buffers are freed on return.
|
*/
|
*/
|
int
|
int
|
sosend(so, addr, uio, top, control, flags)
|
sosend(so, addr, uio, top, control, flags)
|
register struct socket *so;
|
register struct socket *so;
|
struct mbuf *addr;
|
struct mbuf *addr;
|
struct uio *uio;
|
struct uio *uio;
|
struct mbuf *top;
|
struct mbuf *top;
|
struct mbuf *control;
|
struct mbuf *control;
|
int flags;
|
int flags;
|
{
|
{
|
struct mbuf **mp;
|
struct mbuf **mp;
|
register struct mbuf *m;
|
register struct mbuf *m;
|
register long space, len, resid;
|
register long space, len, resid;
|
int clen = 0, error, s, dontroute, mlen;
|
int clen = 0, error, s, dontroute, mlen;
|
int atomic = sosendallatonce(so) || top;
|
int atomic = sosendallatonce(so) || top;
|
|
|
if (uio)
|
if (uio)
|
resid = uio->uio_resid;
|
resid = uio->uio_resid;
|
else
|
else
|
resid = top->m_pkthdr.len;
|
resid = top->m_pkthdr.len;
|
/*
|
/*
|
* In theory resid should be unsigned.
|
* In theory resid should be unsigned.
|
* However, space must be signed, as it might be less than 0
|
* However, space must be signed, as it might be less than 0
|
* if we over-committed, and we must use a signed comparison
|
* if we over-committed, and we must use a signed comparison
|
* of space and resid. On the other hand, a negative resid
|
* of space and resid. On the other hand, a negative resid
|
* causes us to loop sending 0-length segments to the protocol.
|
* causes us to loop sending 0-length segments to the protocol.
|
*
|
*
|
* Also check to make sure that MSG_EOR isn't used on SOCK_STREAM
|
* Also check to make sure that MSG_EOR isn't used on SOCK_STREAM
|
* type sockets since that's an error.
|
* type sockets since that's an error.
|
*/
|
*/
|
if ((resid < 0) || (so->so_type == SOCK_STREAM && (flags & MSG_EOR))) {
|
if ((resid < 0) || (so->so_type == SOCK_STREAM && (flags & MSG_EOR))) {
|
error = EINVAL;
|
error = EINVAL;
|
goto out;
|
goto out;
|
}
|
}
|
|
|
dontroute =
|
dontroute =
|
(flags & MSG_DONTROUTE) && (so->so_options & SO_DONTROUTE) == 0 &&
|
(flags & MSG_DONTROUTE) && (so->so_options & SO_DONTROUTE) == 0 &&
|
(so->so_proto->pr_flags & PR_ATOMIC);
|
(so->so_proto->pr_flags & PR_ATOMIC);
|
if (control)
|
if (control)
|
clen = control->m_len;
|
clen = control->m_len;
|
#define snderr(errno) { error = errno; splx(s); goto release; }
|
#define snderr(errno) { error = errno; splx(s); goto release; }
|
|
|
restart:
|
restart:
|
error = sblock(&so->so_snd, SBLOCKWAIT(flags));
|
error = sblock(&so->so_snd, SBLOCKWAIT(flags));
|
if (error)
|
if (error)
|
goto out;
|
goto out;
|
do {
|
do {
|
s = splnet();
|
s = splnet();
|
if (so->so_state & SS_CANTSENDMORE)
|
if (so->so_state & SS_CANTSENDMORE)
|
snderr(EPIPE);
|
snderr(EPIPE);
|
if (so->so_error) {
|
if (so->so_error) {
|
error = so->so_error;
|
error = so->so_error;
|
so->so_error = 0;
|
so->so_error = 0;
|
splx(s);
|
splx(s);
|
goto release;
|
goto release;
|
}
|
}
|
if ((so->so_state & SS_ISCONNECTED) == 0) {
|
if ((so->so_state & SS_ISCONNECTED) == 0) {
|
/*
|
/*
|
* `sendto' and `sendmsg' is allowed on a connection-
|
* `sendto' and `sendmsg' is allowed on a connection-
|
* based socket if it supports implied connect.
|
* based socket if it supports implied connect.
|
* Return ENOTCONN if not connected and no address is
|
* Return ENOTCONN if not connected and no address is
|
* supplied.
|
* supplied.
|
*/
|
*/
|
if ((so->so_proto->pr_flags & PR_CONNREQUIRED) &&
|
if ((so->so_proto->pr_flags & PR_CONNREQUIRED) &&
|
(so->so_proto->pr_flags & PR_IMPLOPCL) == 0) {
|
(so->so_proto->pr_flags & PR_IMPLOPCL) == 0) {
|
if ((so->so_state & SS_ISCONFIRMING) == 0 &&
|
if ((so->so_state & SS_ISCONFIRMING) == 0 &&
|
!(resid == 0 && clen != 0))
|
!(resid == 0 && clen != 0))
|
snderr(ENOTCONN);
|
snderr(ENOTCONN);
|
} else if (addr == 0)
|
} else if (addr == 0)
|
snderr(so->so_proto->pr_flags & PR_CONNREQUIRED ?
|
snderr(so->so_proto->pr_flags & PR_CONNREQUIRED ?
|
ENOTCONN : EDESTADDRREQ);
|
ENOTCONN : EDESTADDRREQ);
|
}
|
}
|
space = sbspace(&so->so_snd);
|
space = sbspace(&so->so_snd);
|
if (flags & MSG_OOB)
|
if (flags & MSG_OOB)
|
space += 1024;
|
space += 1024;
|
if ((atomic && resid > so->so_snd.sb_hiwat) ||
|
if ((atomic && resid > so->so_snd.sb_hiwat) ||
|
clen > so->so_snd.sb_hiwat)
|
clen > so->so_snd.sb_hiwat)
|
snderr(EMSGSIZE);
|
snderr(EMSGSIZE);
|
if (space < resid + clen && uio &&
|
if (space < resid + clen && uio &&
|
(atomic || space < so->so_snd.sb_lowat || space < clen)) {
|
(atomic || space < so->so_snd.sb_lowat || space < clen)) {
|
if (so->so_state & SS_NBIO)
|
if (so->so_state & SS_NBIO)
|
snderr(EWOULDBLOCK);
|
snderr(EWOULDBLOCK);
|
sbunlock(&so->so_snd);
|
sbunlock(&so->so_snd);
|
error = sbwait(&so->so_snd);
|
error = sbwait(&so->so_snd);
|
splx(s);
|
splx(s);
|
if (error)
|
if (error)
|
goto out;
|
goto out;
|
goto restart;
|
goto restart;
|
}
|
}
|
splx(s);
|
splx(s);
|
mp = ⊤
|
mp = ⊤
|
space -= clen;
|
space -= clen;
|
do {
|
do {
|
if (uio == NULL) {
|
if (uio == NULL) {
|
/*
|
/*
|
* Data is prepackaged in "top".
|
* Data is prepackaged in "top".
|
*/
|
*/
|
resid = 0;
|
resid = 0;
|
if (flags & MSG_EOR)
|
if (flags & MSG_EOR)
|
top->m_flags |= M_EOR;
|
top->m_flags |= M_EOR;
|
} else do {
|
} else do {
|
if (top == 0) {
|
if (top == 0) {
|
MGETHDR(m, M_WAIT, MT_DATA);
|
MGETHDR(m, M_WAIT, MT_DATA);
|
mlen = MHLEN;
|
mlen = MHLEN;
|
m->m_pkthdr.len = 0;
|
m->m_pkthdr.len = 0;
|
m->m_pkthdr.rcvif = (struct ifnet *)0;
|
m->m_pkthdr.rcvif = (struct ifnet *)0;
|
} else {
|
} else {
|
MGET(m, M_WAIT, MT_DATA);
|
MGET(m, M_WAIT, MT_DATA);
|
mlen = MLEN;
|
mlen = MLEN;
|
}
|
}
|
if (resid >= MINCLSIZE) {
|
if (resid >= MINCLSIZE) {
|
MCLGET(m, M_WAIT);
|
MCLGET(m, M_WAIT);
|
if ((m->m_flags & M_EXT) == 0)
|
if ((m->m_flags & M_EXT) == 0)
|
goto nopages;
|
goto nopages;
|
mlen = MCLBYTES;
|
mlen = MCLBYTES;
|
len = min(min(mlen, resid), space);
|
len = min(min(mlen, resid), space);
|
} else {
|
} else {
|
nopages:
|
nopages:
|
len = min(min(mlen, resid), space);
|
len = min(min(mlen, resid), space);
|
/*
|
/*
|
* For datagram protocols, leave room
|
* For datagram protocols, leave room
|
* for protocol headers in first mbuf.
|
* for protocol headers in first mbuf.
|
*/
|
*/
|
if (atomic && top == 0 && len < mlen)
|
if (atomic && top == 0 && len < mlen)
|
MH_ALIGN(m, len);
|
MH_ALIGN(m, len);
|
}
|
}
|
space -= len;
|
space -= len;
|
error = uiomove(mtod(m, caddr_t), (int)len, uio);
|
error = uiomove(mtod(m, caddr_t), (int)len, uio);
|
resid = uio->uio_resid;
|
resid = uio->uio_resid;
|
m->m_len = len;
|
m->m_len = len;
|
*mp = m;
|
*mp = m;
|
top->m_pkthdr.len += len;
|
top->m_pkthdr.len += len;
|
if (error)
|
if (error)
|
goto release;
|
goto release;
|
mp = &m->m_next;
|
mp = &m->m_next;
|
if (resid <= 0) {
|
if (resid <= 0) {
|
if (flags & MSG_EOR)
|
if (flags & MSG_EOR)
|
top->m_flags |= M_EOR;
|
top->m_flags |= M_EOR;
|
break;
|
break;
|
}
|
}
|
} while (space > 0 && atomic);
|
} while (space > 0 && atomic);
|
if (dontroute)
|
if (dontroute)
|
so->so_options |= SO_DONTROUTE;
|
so->so_options |= SO_DONTROUTE;
|
s = splnet(); /* XXX */
|
s = splnet(); /* XXX */
|
error = (*so->so_proto->pr_usrreqs->pru_send)(so,
|
error = (*so->so_proto->pr_usrreqs->pru_send)(so,
|
(flags & MSG_OOB) ? PRUS_OOB :
|
(flags & MSG_OOB) ? PRUS_OOB :
|
/*
|
/*
|
* If the user set MSG_EOF, the protocol
|
* If the user set MSG_EOF, the protocol
|
* understands this flag and nothing left to
|
* understands this flag and nothing left to
|
* send then use PRU_SEND_EOF instead of PRU_SEND.
|
* send then use PRU_SEND_EOF instead of PRU_SEND.
|
*/
|
*/
|
((flags & MSG_EOF) &&
|
((flags & MSG_EOF) &&
|
(so->so_proto->pr_flags & PR_IMPLOPCL) &&
|
(so->so_proto->pr_flags & PR_IMPLOPCL) &&
|
(resid <= 0)) ?
|
(resid <= 0)) ?
|
PRUS_EOF : 0,
|
PRUS_EOF : 0,
|
top, addr, control);
|
top, addr, control);
|
splx(s);
|
splx(s);
|
if (dontroute)
|
if (dontroute)
|
so->so_options &= ~SO_DONTROUTE;
|
so->so_options &= ~SO_DONTROUTE;
|
clen = 0;
|
clen = 0;
|
control = 0;
|
control = 0;
|
top = 0;
|
top = 0;
|
mp = ⊤
|
mp = ⊤
|
if (error)
|
if (error)
|
goto release;
|
goto release;
|
} while (resid && space > 0);
|
} while (resid && space > 0);
|
} while (resid);
|
} while (resid);
|
|
|
release:
|
release:
|
sbunlock(&so->so_snd);
|
sbunlock(&so->so_snd);
|
out:
|
out:
|
if (top)
|
if (top)
|
m_freem(top);
|
m_freem(top);
|
if (control)
|
if (control)
|
m_freem(control);
|
m_freem(control);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
/*
|
/*
|
* Implement receive operations on a socket.
|
* Implement receive operations on a socket.
|
* We depend on the way that records are added to the sockbuf
|
* We depend on the way that records are added to the sockbuf
|
* by sbappend*. In particular, each record (mbufs linked through m_next)
|
* by sbappend*. In particular, each record (mbufs linked through m_next)
|
* must begin with an address if the protocol so specifies,
|
* must begin with an address if the protocol so specifies,
|
* followed by an optional mbuf or mbufs containing ancillary data,
|
* followed by an optional mbuf or mbufs containing ancillary data,
|
* and then zero or more mbufs of data.
|
* and then zero or more mbufs of data.
|
* In order to avoid blocking network interrupts for the entire time here,
|
* In order to avoid blocking network interrupts for the entire time here,
|
* we splx() while doing the actual copy to user space.
|
* we splx() while doing the actual copy to user space.
|
* Although the sockbuf is locked, new data may still be appended,
|
* Although the sockbuf is locked, new data may still be appended,
|
* and thus we must maintain consistency of the sockbuf during that time.
|
* and thus we must maintain consistency of the sockbuf during that time.
|
*
|
*
|
* The caller may receive the data as a single mbuf chain by supplying
|
* The caller may receive the data as a single mbuf chain by supplying
|
* an mbuf **mp0 for use in returning the chain. The uio is then used
|
* an mbuf **mp0 for use in returning the chain. The uio is then used
|
* only for the count in uio_resid.
|
* only for the count in uio_resid.
|
*/
|
*/
|
int
|
int
|
soreceive(so, paddr, uio, mp0, controlp, flagsp)
|
soreceive(so, paddr, uio, mp0, controlp, flagsp)
|
register struct socket *so;
|
register struct socket *so;
|
struct mbuf **paddr;
|
struct mbuf **paddr;
|
struct uio *uio;
|
struct uio *uio;
|
struct mbuf **mp0;
|
struct mbuf **mp0;
|
struct mbuf **controlp;
|
struct mbuf **controlp;
|
int *flagsp;
|
int *flagsp;
|
{
|
{
|
register struct mbuf *m, **mp;
|
register struct mbuf *m, **mp;
|
register int flags, len, error, s, offset;
|
register int flags, len, error, s, offset;
|
struct protosw *pr = so->so_proto;
|
struct protosw *pr = so->so_proto;
|
struct mbuf *nextrecord;
|
struct mbuf *nextrecord;
|
int moff, type = 0;
|
int moff, type = 0;
|
int orig_resid = uio->uio_resid;
|
int orig_resid = uio->uio_resid;
|
|
|
mp = mp0;
|
mp = mp0;
|
if (paddr)
|
if (paddr)
|
*paddr = 0;
|
*paddr = 0;
|
if (controlp)
|
if (controlp)
|
*controlp = 0;
|
*controlp = 0;
|
if (flagsp)
|
if (flagsp)
|
flags = *flagsp &~ MSG_EOR;
|
flags = *flagsp &~ MSG_EOR;
|
else
|
else
|
flags = 0;
|
flags = 0;
|
if (flags & MSG_OOB) {
|
if (flags & MSG_OOB) {
|
m = m_get(M_WAIT, MT_DATA);
|
m = m_get(M_WAIT, MT_DATA);
|
error = (*pr->pr_usrreqs->pru_rcvoob)(so, m, flags & MSG_PEEK);
|
error = (*pr->pr_usrreqs->pru_rcvoob)(so, m, flags & MSG_PEEK);
|
if (error)
|
if (error)
|
goto bad;
|
goto bad;
|
do {
|
do {
|
error = uiomove(mtod(m, caddr_t),
|
error = uiomove(mtod(m, caddr_t),
|
(int) min(uio->uio_resid, m->m_len), uio);
|
(int) min(uio->uio_resid, m->m_len), uio);
|
m = m_free(m);
|
m = m_free(m);
|
} while (uio->uio_resid && error == 0 && m);
|
} while (uio->uio_resid && error == 0 && m);
|
bad:
|
bad:
|
if (m)
|
if (m)
|
m_freem(m);
|
m_freem(m);
|
return (error);
|
return (error);
|
}
|
}
|
if (mp)
|
if (mp)
|
*mp = (struct mbuf *)0;
|
*mp = (struct mbuf *)0;
|
if (so->so_state & SS_ISCONFIRMING && uio->uio_resid)
|
if (so->so_state & SS_ISCONFIRMING && uio->uio_resid)
|
(*pr->pr_usrreqs->pru_rcvd)(so, 0);
|
(*pr->pr_usrreqs->pru_rcvd)(so, 0);
|
|
|
restart:
|
restart:
|
error = sblock(&so->so_rcv, SBLOCKWAIT(flags));
|
error = sblock(&so->so_rcv, SBLOCKWAIT(flags));
|
if (error)
|
if (error)
|
return (error);
|
return (error);
|
s = splnet();
|
s = splnet();
|
|
|
m = so->so_rcv.sb_mb;
|
m = so->so_rcv.sb_mb;
|
/*
|
/*
|
* If we have less data than requested, block awaiting more
|
* If we have less data than requested, block awaiting more
|
* (subject to any timeout) if:
|
* (subject to any timeout) if:
|
* 1. the current count is less than the low water mark, or
|
* 1. the current count is less than the low water mark, or
|
* 2. MSG_WAITALL is set, and it is possible to do the entire
|
* 2. MSG_WAITALL is set, and it is possible to do the entire
|
* receive operation at once if we block (resid <= hiwat).
|
* receive operation at once if we block (resid <= hiwat).
|
* 3. MSG_DONTWAIT is not set
|
* 3. MSG_DONTWAIT is not set
|
* If MSG_WAITALL is set but resid is larger than the receive buffer,
|
* If MSG_WAITALL is set but resid is larger than the receive buffer,
|
* we have to do the receive in sections, and thus risk returning
|
* we have to do the receive in sections, and thus risk returning
|
* a short count if a timeout or signal occurs after we start.
|
* a short count if a timeout or signal occurs after we start.
|
*/
|
*/
|
if (m == 0 || (((flags & MSG_DONTWAIT) == 0 &&
|
if (m == 0 || (((flags & MSG_DONTWAIT) == 0 &&
|
so->so_rcv.sb_cc < uio->uio_resid) &&
|
so->so_rcv.sb_cc < uio->uio_resid) &&
|
(so->so_rcv.sb_cc < so->so_rcv.sb_lowat ||
|
(so->so_rcv.sb_cc < so->so_rcv.sb_lowat ||
|
((flags & MSG_WAITALL) && uio->uio_resid <= so->so_rcv.sb_hiwat)) &&
|
((flags & MSG_WAITALL) && uio->uio_resid <= so->so_rcv.sb_hiwat)) &&
|
m->m_nextpkt == 0 && (pr->pr_flags & PR_ATOMIC) == 0)) {
|
m->m_nextpkt == 0 && (pr->pr_flags & PR_ATOMIC) == 0)) {
|
#ifdef DIAGNOSTIC
|
#ifdef DIAGNOSTIC
|
if (m == 0 && so->so_rcv.sb_cc)
|
if (m == 0 && so->so_rcv.sb_cc)
|
panic("receive 1");
|
panic("receive 1");
|
#endif
|
#endif
|
if (so->so_error) {
|
if (so->so_error) {
|
if (m)
|
if (m)
|
goto dontblock;
|
goto dontblock;
|
error = so->so_error;
|
error = so->so_error;
|
if ((flags & MSG_PEEK) == 0)
|
if ((flags & MSG_PEEK) == 0)
|
so->so_error = 0;
|
so->so_error = 0;
|
goto release;
|
goto release;
|
}
|
}
|
if (so->so_state & SS_CANTRCVMORE) {
|
if (so->so_state & SS_CANTRCVMORE) {
|
if (m)
|
if (m)
|
goto dontblock;
|
goto dontblock;
|
else
|
else
|
goto release;
|
goto release;
|
}
|
}
|
for (; m; m = m->m_next)
|
for (; m; m = m->m_next)
|
if (m->m_type == MT_OOBDATA || (m->m_flags & M_EOR)) {
|
if (m->m_type == MT_OOBDATA || (m->m_flags & M_EOR)) {
|
m = so->so_rcv.sb_mb;
|
m = so->so_rcv.sb_mb;
|
goto dontblock;
|
goto dontblock;
|
}
|
}
|
if ((so->so_state & (SS_ISCONNECTED|SS_ISCONNECTING)) == 0 &&
|
if ((so->so_state & (SS_ISCONNECTED|SS_ISCONNECTING)) == 0 &&
|
(so->so_proto->pr_flags & PR_CONNREQUIRED)) {
|
(so->so_proto->pr_flags & PR_CONNREQUIRED)) {
|
error = ENOTCONN;
|
error = ENOTCONN;
|
goto release;
|
goto release;
|
}
|
}
|
if (uio->uio_resid == 0)
|
if (uio->uio_resid == 0)
|
goto release;
|
goto release;
|
if ((so->so_state & SS_NBIO) || (flags & MSG_DONTWAIT)) {
|
if ((so->so_state & SS_NBIO) || (flags & MSG_DONTWAIT)) {
|
error = EWOULDBLOCK;
|
error = EWOULDBLOCK;
|
goto release;
|
goto release;
|
}
|
}
|
sbunlock(&so->so_rcv);
|
sbunlock(&so->so_rcv);
|
error = sbwait(&so->so_rcv);
|
error = sbwait(&so->so_rcv);
|
splx(s);
|
splx(s);
|
if (error)
|
if (error)
|
return (error);
|
return (error);
|
goto restart;
|
goto restart;
|
}
|
}
|
dontblock:
|
dontblock:
|
nextrecord = m->m_nextpkt;
|
nextrecord = m->m_nextpkt;
|
if (pr->pr_flags & PR_ADDR) {
|
if (pr->pr_flags & PR_ADDR) {
|
#ifdef DIAGNOSTIC
|
#ifdef DIAGNOSTIC
|
if (m->m_type != MT_SONAME)
|
if (m->m_type != MT_SONAME)
|
panic("receive 1a");
|
panic("receive 1a");
|
#endif
|
#endif
|
orig_resid = 0;
|
orig_resid = 0;
|
if (flags & MSG_PEEK) {
|
if (flags & MSG_PEEK) {
|
if (paddr)
|
if (paddr)
|
*paddr = m_copy(m, 0, m->m_len);
|
*paddr = m_copy(m, 0, m->m_len);
|
m = m->m_next;
|
m = m->m_next;
|
} else {
|
} else {
|
sbfree(&so->so_rcv, m);
|
sbfree(&so->so_rcv, m);
|
if (paddr) {
|
if (paddr) {
|
*paddr = m;
|
*paddr = m;
|
so->so_rcv.sb_mb = m->m_next;
|
so->so_rcv.sb_mb = m->m_next;
|
m->m_next = 0;
|
m->m_next = 0;
|
m = so->so_rcv.sb_mb;
|
m = so->so_rcv.sb_mb;
|
} else {
|
} else {
|
MFREE(m, so->so_rcv.sb_mb);
|
MFREE(m, so->so_rcv.sb_mb);
|
m = so->so_rcv.sb_mb;
|
m = so->so_rcv.sb_mb;
|
}
|
}
|
}
|
}
|
}
|
}
|
while (m && m->m_type == MT_CONTROL && error == 0) {
|
while (m && m->m_type == MT_CONTROL && error == 0) {
|
if (flags & MSG_PEEK) {
|
if (flags & MSG_PEEK) {
|
if (controlp)
|
if (controlp)
|
*controlp = m_copy(m, 0, m->m_len);
|
*controlp = m_copy(m, 0, m->m_len);
|
m = m->m_next;
|
m = m->m_next;
|
} else {
|
} else {
|
sbfree(&so->so_rcv, m);
|
sbfree(&so->so_rcv, m);
|
if (controlp) {
|
if (controlp) {
|
if (pr->pr_domain->dom_externalize &&
|
if (pr->pr_domain->dom_externalize &&
|
mtod(m, struct cmsghdr *)->cmsg_type ==
|
mtod(m, struct cmsghdr *)->cmsg_type ==
|
SCM_RIGHTS)
|
SCM_RIGHTS)
|
error = (*pr->pr_domain->dom_externalize)(m);
|
error = (*pr->pr_domain->dom_externalize)(m);
|
*controlp = m;
|
*controlp = m;
|
so->so_rcv.sb_mb = m->m_next;
|
so->so_rcv.sb_mb = m->m_next;
|
m->m_next = 0;
|
m->m_next = 0;
|
m = so->so_rcv.sb_mb;
|
m = so->so_rcv.sb_mb;
|
} else {
|
} else {
|
MFREE(m, so->so_rcv.sb_mb);
|
MFREE(m, so->so_rcv.sb_mb);
|
m = so->so_rcv.sb_mb;
|
m = so->so_rcv.sb_mb;
|
}
|
}
|
}
|
}
|
if (controlp) {
|
if (controlp) {
|
orig_resid = 0;
|
orig_resid = 0;
|
controlp = &(*controlp)->m_next;
|
controlp = &(*controlp)->m_next;
|
}
|
}
|
}
|
}
|
if (m) {
|
if (m) {
|
if ((flags & MSG_PEEK) == 0)
|
if ((flags & MSG_PEEK) == 0)
|
m->m_nextpkt = nextrecord;
|
m->m_nextpkt = nextrecord;
|
type = m->m_type;
|
type = m->m_type;
|
if (type == MT_OOBDATA)
|
if (type == MT_OOBDATA)
|
flags |= MSG_OOB;
|
flags |= MSG_OOB;
|
}
|
}
|
moff = 0;
|
moff = 0;
|
offset = 0;
|
offset = 0;
|
while (m && uio->uio_resid > 0 && error == 0) {
|
while (m && uio->uio_resid > 0 && error == 0) {
|
if (m->m_type == MT_OOBDATA) {
|
if (m->m_type == MT_OOBDATA) {
|
if (type != MT_OOBDATA)
|
if (type != MT_OOBDATA)
|
break;
|
break;
|
} else if (type == MT_OOBDATA)
|
} else if (type == MT_OOBDATA)
|
break;
|
break;
|
#ifdef DIAGNOSTIC
|
#ifdef DIAGNOSTIC
|
else if (m->m_type != MT_DATA && m->m_type != MT_HEADER)
|
else if (m->m_type != MT_DATA && m->m_type != MT_HEADER)
|
panic("receive 3");
|
panic("receive 3");
|
#endif
|
#endif
|
so->so_state &= ~SS_RCVATMARK;
|
so->so_state &= ~SS_RCVATMARK;
|
len = uio->uio_resid;
|
len = uio->uio_resid;
|
if (so->so_oobmark && len > so->so_oobmark - offset)
|
if (so->so_oobmark && len > so->so_oobmark - offset)
|
len = so->so_oobmark - offset;
|
len = so->so_oobmark - offset;
|
if (len > m->m_len - moff)
|
if (len > m->m_len - moff)
|
len = m->m_len - moff;
|
len = m->m_len - moff;
|
/*
|
/*
|
* If mp is set, just pass back the mbufs.
|
* If mp is set, just pass back the mbufs.
|
* Otherwise copy them out via the uio, then free.
|
* Otherwise copy them out via the uio, then free.
|
* Sockbuf must be consistent here (points to current mbuf,
|
* Sockbuf must be consistent here (points to current mbuf,
|
* it points to next record) when we drop priority;
|
* it points to next record) when we drop priority;
|
* we must note any additions to the sockbuf when we
|
* we must note any additions to the sockbuf when we
|
* block interrupts again.
|
* block interrupts again.
|
*/
|
*/
|
if (mp == 0) {
|
if (mp == 0) {
|
splx(s);
|
splx(s);
|
error = uiomove(mtod(m, caddr_t) + moff, (int)len, uio);
|
error = uiomove(mtod(m, caddr_t) + moff, (int)len, uio);
|
s = splnet();
|
s = splnet();
|
if (error)
|
if (error)
|
goto release;
|
goto release;
|
} else
|
} else
|
uio->uio_resid -= len;
|
uio->uio_resid -= len;
|
if (len == m->m_len - moff) {
|
if (len == m->m_len - moff) {
|
if (m->m_flags & M_EOR)
|
if (m->m_flags & M_EOR)
|
flags |= MSG_EOR;
|
flags |= MSG_EOR;
|
if (flags & MSG_PEEK) {
|
if (flags & MSG_PEEK) {
|
m = m->m_next;
|
m = m->m_next;
|
moff = 0;
|
moff = 0;
|
} else {
|
} else {
|
nextrecord = m->m_nextpkt;
|
nextrecord = m->m_nextpkt;
|
sbfree(&so->so_rcv, m);
|
sbfree(&so->so_rcv, m);
|
if (mp) {
|
if (mp) {
|
*mp = m;
|
*mp = m;
|
mp = &m->m_next;
|
mp = &m->m_next;
|
so->so_rcv.sb_mb = m = m->m_next;
|
so->so_rcv.sb_mb = m = m->m_next;
|
*mp = (struct mbuf *)0;
|
*mp = (struct mbuf *)0;
|
} else {
|
} else {
|
MFREE(m, so->so_rcv.sb_mb);
|
MFREE(m, so->so_rcv.sb_mb);
|
m = so->so_rcv.sb_mb;
|
m = so->so_rcv.sb_mb;
|
}
|
}
|
if (m)
|
if (m)
|
m->m_nextpkt = nextrecord;
|
m->m_nextpkt = nextrecord;
|
}
|
}
|
} else {
|
} else {
|
if (flags & MSG_PEEK)
|
if (flags & MSG_PEEK)
|
moff += len;
|
moff += len;
|
else {
|
else {
|
if (mp)
|
if (mp)
|
*mp = m_copym(m, 0, len, M_WAIT);
|
*mp = m_copym(m, 0, len, M_WAIT);
|
m->m_data += len;
|
m->m_data += len;
|
m->m_len -= len;
|
m->m_len -= len;
|
so->so_rcv.sb_cc -= len;
|
so->so_rcv.sb_cc -= len;
|
}
|
}
|
}
|
}
|
if (so->so_oobmark) {
|
if (so->so_oobmark) {
|
if ((flags & MSG_PEEK) == 0) {
|
if ((flags & MSG_PEEK) == 0) {
|
so->so_oobmark -= len;
|
so->so_oobmark -= len;
|
if (so->so_oobmark == 0) {
|
if (so->so_oobmark == 0) {
|
so->so_state |= SS_RCVATMARK;
|
so->so_state |= SS_RCVATMARK;
|
break;
|
break;
|
}
|
}
|
} else {
|
} else {
|
offset += len;
|
offset += len;
|
if (offset == so->so_oobmark)
|
if (offset == so->so_oobmark)
|
break;
|
break;
|
}
|
}
|
}
|
}
|
if (flags & MSG_EOR)
|
if (flags & MSG_EOR)
|
break;
|
break;
|
/*
|
/*
|
* If the MSG_WAITALL flag is set (for non-atomic socket),
|
* If the MSG_WAITALL flag is set (for non-atomic socket),
|
* we must not quit until "uio->uio_resid == 0" or an error
|
* we must not quit until "uio->uio_resid == 0" or an error
|
* termination. If a signal/timeout occurs, return
|
* termination. If a signal/timeout occurs, return
|
* with a short count but without error.
|
* with a short count but without error.
|
* Keep sockbuf locked against other readers.
|
* Keep sockbuf locked against other readers.
|
*/
|
*/
|
while (flags & MSG_WAITALL && m == 0 && uio->uio_resid > 0 &&
|
while (flags & MSG_WAITALL && m == 0 && uio->uio_resid > 0 &&
|
!sosendallatonce(so) && !nextrecord) {
|
!sosendallatonce(so) && !nextrecord) {
|
if (so->so_error || so->so_state & SS_CANTRCVMORE)
|
if (so->so_error || so->so_state & SS_CANTRCVMORE)
|
break;
|
break;
|
error = sbwait(&so->so_rcv);
|
error = sbwait(&so->so_rcv);
|
if (error) {
|
if (error) {
|
sbunlock(&so->so_rcv);
|
sbunlock(&so->so_rcv);
|
splx(s);
|
splx(s);
|
return (0);
|
return (0);
|
}
|
}
|
m = so->so_rcv.sb_mb;
|
m = so->so_rcv.sb_mb;
|
if (m)
|
if (m)
|
nextrecord = m->m_nextpkt;
|
nextrecord = m->m_nextpkt;
|
}
|
}
|
}
|
}
|
|
|
if (m && pr->pr_flags & PR_ATOMIC) {
|
if (m && pr->pr_flags & PR_ATOMIC) {
|
flags |= MSG_TRUNC;
|
flags |= MSG_TRUNC;
|
if ((flags & MSG_PEEK) == 0)
|
if ((flags & MSG_PEEK) == 0)
|
(void) sbdroprecord(&so->so_rcv);
|
(void) sbdroprecord(&so->so_rcv);
|
}
|
}
|
if ((flags & MSG_PEEK) == 0) {
|
if ((flags & MSG_PEEK) == 0) {
|
if (m == 0)
|
if (m == 0)
|
so->so_rcv.sb_mb = nextrecord;
|
so->so_rcv.sb_mb = nextrecord;
|
if (pr->pr_flags & PR_WANTRCVD && so->so_pcb)
|
if (pr->pr_flags & PR_WANTRCVD && so->so_pcb)
|
(*pr->pr_usrreqs->pru_rcvd)(so, flags);
|
(*pr->pr_usrreqs->pru_rcvd)(so, flags);
|
}
|
}
|
if (orig_resid == uio->uio_resid && orig_resid &&
|
if (orig_resid == uio->uio_resid && orig_resid &&
|
(flags & MSG_EOR) == 0 && (so->so_state & SS_CANTRCVMORE) == 0) {
|
(flags & MSG_EOR) == 0 && (so->so_state & SS_CANTRCVMORE) == 0) {
|
sbunlock(&so->so_rcv);
|
sbunlock(&so->so_rcv);
|
splx(s);
|
splx(s);
|
goto restart;
|
goto restart;
|
}
|
}
|
|
|
if (flagsp)
|
if (flagsp)
|
*flagsp |= flags;
|
*flagsp |= flags;
|
release:
|
release:
|
sbunlock(&so->so_rcv);
|
sbunlock(&so->so_rcv);
|
splx(s);
|
splx(s);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
int
|
int
|
soshutdown(so, how)
|
soshutdown(so, how)
|
register struct socket *so;
|
register struct socket *so;
|
register int how;
|
register int how;
|
{
|
{
|
register struct protosw *pr = so->so_proto;
|
register struct protosw *pr = so->so_proto;
|
|
|
how++;
|
how++;
|
if (how & FREAD)
|
if (how & FREAD)
|
sorflush(so);
|
sorflush(so);
|
if (how & FWRITE)
|
if (how & FWRITE)
|
return ((*pr->pr_usrreqs->pru_shutdown)(so));
|
return ((*pr->pr_usrreqs->pru_shutdown)(so));
|
return (0);
|
return (0);
|
}
|
}
|
|
|
void
|
void
|
sorflush(so)
|
sorflush(so)
|
register struct socket *so;
|
register struct socket *so;
|
{
|
{
|
register struct sockbuf *sb = &so->so_rcv;
|
register struct sockbuf *sb = &so->so_rcv;
|
register struct protosw *pr = so->so_proto;
|
register struct protosw *pr = so->so_proto;
|
register int s;
|
register int s;
|
struct sockbuf asb;
|
struct sockbuf asb;
|
|
|
sb->sb_flags |= SB_NOINTR;
|
sb->sb_flags |= SB_NOINTR;
|
(void) sblock(sb, M_WAITOK);
|
(void) sblock(sb, M_WAITOK);
|
s = splimp();
|
s = splimp();
|
socantrcvmore(so);
|
socantrcvmore(so);
|
sbunlock(sb);
|
sbunlock(sb);
|
asb = *sb;
|
asb = *sb;
|
bzero((caddr_t)sb, sizeof (*sb));
|
bzero((caddr_t)sb, sizeof (*sb));
|
splx(s);
|
splx(s);
|
if (pr->pr_flags & PR_RIGHTS && pr->pr_domain->dom_dispose)
|
if (pr->pr_flags & PR_RIGHTS && pr->pr_domain->dom_dispose)
|
(*pr->pr_domain->dom_dispose)(asb.sb_mb);
|
(*pr->pr_domain->dom_dispose)(asb.sb_mb);
|
sbrelease(&asb);
|
sbrelease(&asb);
|
}
|
}
|
|
|
int
|
int
|
sosetopt(so, level, optname, m0)
|
sosetopt(so, level, optname, m0)
|
register struct socket *so;
|
register struct socket *so;
|
int level, optname;
|
int level, optname;
|
struct mbuf *m0;
|
struct mbuf *m0;
|
{
|
{
|
int error = 0;
|
int error = 0;
|
register struct mbuf *m = m0;
|
register struct mbuf *m = m0;
|
|
|
if (level != SOL_SOCKET) {
|
if (level != SOL_SOCKET) {
|
if (so->so_proto && so->so_proto->pr_ctloutput)
|
if (so->so_proto && so->so_proto->pr_ctloutput)
|
return ((*so->so_proto->pr_ctloutput)
|
return ((*so->so_proto->pr_ctloutput)
|
(PRCO_SETOPT, so, level, optname, &m0));
|
(PRCO_SETOPT, so, level, optname, &m0));
|
error = ENOPROTOOPT;
|
error = ENOPROTOOPT;
|
} else {
|
} else {
|
switch (optname) {
|
switch (optname) {
|
|
|
case SO_LINGER:
|
case SO_LINGER:
|
if (m == NULL || m->m_len != sizeof (struct linger)) {
|
if (m == NULL || m->m_len != sizeof (struct linger)) {
|
error = EINVAL;
|
error = EINVAL;
|
goto bad;
|
goto bad;
|
}
|
}
|
so->so_linger = mtod(m, struct linger *)->l_linger;
|
so->so_linger = mtod(m, struct linger *)->l_linger;
|
/* fall thru... */
|
/* fall thru... */
|
|
|
case SO_DEBUG:
|
case SO_DEBUG:
|
case SO_KEEPALIVE:
|
case SO_KEEPALIVE:
|
case SO_DONTROUTE:
|
case SO_DONTROUTE:
|
case SO_USELOOPBACK:
|
case SO_USELOOPBACK:
|
case SO_BROADCAST:
|
case SO_BROADCAST:
|
case SO_REUSEADDR:
|
case SO_REUSEADDR:
|
case SO_REUSEPORT:
|
case SO_REUSEPORT:
|
case SO_OOBINLINE:
|
case SO_OOBINLINE:
|
case SO_TIMESTAMP:
|
case SO_TIMESTAMP:
|
if (m == NULL || m->m_len < sizeof (int)) {
|
if (m == NULL || m->m_len < sizeof (int)) {
|
error = EINVAL;
|
error = EINVAL;
|
goto bad;
|
goto bad;
|
}
|
}
|
if (*mtod(m, int *))
|
if (*mtod(m, int *))
|
so->so_options |= optname;
|
so->so_options |= optname;
|
else
|
else
|
so->so_options &= ~optname;
|
so->so_options &= ~optname;
|
break;
|
break;
|
|
|
case SO_SNDBUF:
|
case SO_SNDBUF:
|
case SO_RCVBUF:
|
case SO_RCVBUF:
|
case SO_SNDLOWAT:
|
case SO_SNDLOWAT:
|
case SO_RCVLOWAT:
|
case SO_RCVLOWAT:
|
{
|
{
|
int optval;
|
int optval;
|
|
|
if (m == NULL || m->m_len < sizeof (int)) {
|
if (m == NULL || m->m_len < sizeof (int)) {
|
error = EINVAL;
|
error = EINVAL;
|
goto bad;
|
goto bad;
|
}
|
}
|
|
|
/*
|
/*
|
* Values < 1 make no sense for any of these
|
* Values < 1 make no sense for any of these
|
* options, so disallow them.
|
* options, so disallow them.
|
*/
|
*/
|
optval = *mtod(m, int *);
|
optval = *mtod(m, int *);
|
if (optval < 1) {
|
if (optval < 1) {
|
error = EINVAL;
|
error = EINVAL;
|
goto bad;
|
goto bad;
|
}
|
}
|
|
|
switch (optname) {
|
switch (optname) {
|
|
|
case SO_SNDBUF:
|
case SO_SNDBUF:
|
case SO_RCVBUF:
|
case SO_RCVBUF:
|
if (sbreserve(optname == SO_SNDBUF ?
|
if (sbreserve(optname == SO_SNDBUF ?
|
&so->so_snd : &so->so_rcv,
|
&so->so_snd : &so->so_rcv,
|
(u_long) optval) == 0) {
|
(u_long) optval) == 0) {
|
error = ENOBUFS;
|
error = ENOBUFS;
|
goto bad;
|
goto bad;
|
}
|
}
|
break;
|
break;
|
|
|
/*
|
/*
|
* Make sure the low-water is never greater than
|
* Make sure the low-water is never greater than
|
* the high-water.
|
* the high-water.
|
*/
|
*/
|
case SO_SNDLOWAT:
|
case SO_SNDLOWAT:
|
so->so_snd.sb_lowat =
|
so->so_snd.sb_lowat =
|
(optval > so->so_snd.sb_hiwat) ?
|
(optval > so->so_snd.sb_hiwat) ?
|
so->so_snd.sb_hiwat : optval;
|
so->so_snd.sb_hiwat : optval;
|
break;
|
break;
|
case SO_RCVLOWAT:
|
case SO_RCVLOWAT:
|
so->so_rcv.sb_lowat =
|
so->so_rcv.sb_lowat =
|
(optval > so->so_rcv.sb_hiwat) ?
|
(optval > so->so_rcv.sb_hiwat) ?
|
so->so_rcv.sb_hiwat : optval;
|
so->so_rcv.sb_hiwat : optval;
|
break;
|
break;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
|
|
case SO_SNDTIMEO:
|
case SO_SNDTIMEO:
|
case SO_RCVTIMEO:
|
case SO_RCVTIMEO:
|
{
|
{
|
struct timeval *tv;
|
struct timeval *tv;
|
unsigned long val;
|
unsigned long val;
|
|
|
if (m == NULL || m->m_len < sizeof (*tv)) {
|
if (m == NULL || m->m_len < sizeof (*tv)) {
|
error = EINVAL;
|
error = EINVAL;
|
goto bad;
|
goto bad;
|
}
|
}
|
tv = mtod(m, struct timeval *);
|
tv = mtod(m, struct timeval *);
|
if (tv->tv_sec >= (ULONG_MAX - hz) / hz) {
|
if (tv->tv_sec >= (ULONG_MAX - hz) / hz) {
|
error = EDOM;
|
error = EDOM;
|
goto bad;
|
goto bad;
|
}
|
}
|
val = tv->tv_sec * hz + tv->tv_usec / tick;
|
val = tv->tv_sec * hz + tv->tv_usec / tick;
|
|
|
switch (optname) {
|
switch (optname) {
|
|
|
case SO_SNDTIMEO:
|
case SO_SNDTIMEO:
|
so->so_snd.sb_timeo = val;
|
so->so_snd.sb_timeo = val;
|
break;
|
break;
|
case SO_RCVTIMEO:
|
case SO_RCVTIMEO:
|
so->so_rcv.sb_timeo = val;
|
so->so_rcv.sb_timeo = val;
|
break;
|
break;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
|
|
case SO_PRIVSTATE:
|
case SO_PRIVSTATE:
|
/* we don't care what the parameter is... */
|
/* we don't care what the parameter is... */
|
so->so_state &= ~SS_PRIV;
|
so->so_state &= ~SS_PRIV;
|
break;
|
break;
|
|
|
case SO_SNDWAKEUP:
|
case SO_SNDWAKEUP:
|
case SO_RCVWAKEUP:
|
case SO_RCVWAKEUP:
|
{
|
{
|
/* RTEMS addition. */
|
/* RTEMS addition. */
|
struct sockwakeup *sw;
|
struct sockwakeup *sw;
|
struct sockbuf *sb;
|
struct sockbuf *sb;
|
|
|
if (m == NULL
|
if (m == NULL
|
|| m->m_len != sizeof (struct sockwakeup)) {
|
|| m->m_len != sizeof (struct sockwakeup)) {
|
error = EINVAL;
|
error = EINVAL;
|
goto bad;
|
goto bad;
|
}
|
}
|
sw = mtod(m, struct sockwakeup *);
|
sw = mtod(m, struct sockwakeup *);
|
sb = (optname == SO_SNDWAKEUP
|
sb = (optname == SO_SNDWAKEUP
|
? &so->so_snd
|
? &so->so_snd
|
: &so->so_rcv);
|
: &so->so_rcv);
|
sb->sb_wakeup = sw->sw_pfn;
|
sb->sb_wakeup = sw->sw_pfn;
|
sb->sb_wakeuparg = sw->sw_arg;
|
sb->sb_wakeuparg = sw->sw_arg;
|
if (sw->sw_pfn)
|
if (sw->sw_pfn)
|
sb->sb_flags |= SB_ASYNC;
|
sb->sb_flags |= SB_ASYNC;
|
else
|
else
|
sb->sb_flags &=~ SB_ASYNC;
|
sb->sb_flags &=~ SB_ASYNC;
|
break;
|
break;
|
}
|
}
|
|
|
default:
|
default:
|
error = ENOPROTOOPT;
|
error = ENOPROTOOPT;
|
break;
|
break;
|
}
|
}
|
if (error == 0 && so->so_proto && so->so_proto->pr_ctloutput) {
|
if (error == 0 && so->so_proto && so->so_proto->pr_ctloutput) {
|
(void) ((*so->so_proto->pr_ctloutput)
|
(void) ((*so->so_proto->pr_ctloutput)
|
(PRCO_SETOPT, so, level, optname, &m0));
|
(PRCO_SETOPT, so, level, optname, &m0));
|
m = NULL; /* freed by protocol */
|
m = NULL; /* freed by protocol */
|
}
|
}
|
}
|
}
|
bad:
|
bad:
|
if (m)
|
if (m)
|
(void) m_free(m);
|
(void) m_free(m);
|
return (error);
|
return (error);
|
}
|
}
|
|
|
int
|
int
|
sogetopt(so, level, optname, mp)
|
sogetopt(so, level, optname, mp)
|
register struct socket *so;
|
register struct socket *so;
|
int level, optname;
|
int level, optname;
|
struct mbuf **mp;
|
struct mbuf **mp;
|
{
|
{
|
register struct mbuf *m;
|
register struct mbuf *m;
|
|
|
if (level != SOL_SOCKET) {
|
if (level != SOL_SOCKET) {
|
if (so->so_proto && so->so_proto->pr_ctloutput) {
|
if (so->so_proto && so->so_proto->pr_ctloutput) {
|
return ((*so->so_proto->pr_ctloutput)
|
return ((*so->so_proto->pr_ctloutput)
|
(PRCO_GETOPT, so, level, optname, mp));
|
(PRCO_GETOPT, so, level, optname, mp));
|
} else
|
} else
|
return (ENOPROTOOPT);
|
return (ENOPROTOOPT);
|
} else {
|
} else {
|
m = m_get(M_WAIT, MT_SOOPTS);
|
m = m_get(M_WAIT, MT_SOOPTS);
|
m->m_len = sizeof (int);
|
m->m_len = sizeof (int);
|
|
|
switch (optname) {
|
switch (optname) {
|
|
|
case SO_LINGER:
|
case SO_LINGER:
|
m->m_len = sizeof (struct linger);
|
m->m_len = sizeof (struct linger);
|
mtod(m, struct linger *)->l_onoff =
|
mtod(m, struct linger *)->l_onoff =
|
so->so_options & SO_LINGER;
|
so->so_options & SO_LINGER;
|
mtod(m, struct linger *)->l_linger = so->so_linger;
|
mtod(m, struct linger *)->l_linger = so->so_linger;
|
break;
|
break;
|
|
|
case SO_USELOOPBACK:
|
case SO_USELOOPBACK:
|
case SO_DONTROUTE:
|
case SO_DONTROUTE:
|
case SO_DEBUG:
|
case SO_DEBUG:
|
case SO_KEEPALIVE:
|
case SO_KEEPALIVE:
|
case SO_REUSEADDR:
|
case SO_REUSEADDR:
|
case SO_REUSEPORT:
|
case SO_REUSEPORT:
|
case SO_BROADCAST:
|
case SO_BROADCAST:
|
case SO_OOBINLINE:
|
case SO_OOBINLINE:
|
case SO_TIMESTAMP:
|
case SO_TIMESTAMP:
|
*mtod(m, int *) = so->so_options & optname;
|
*mtod(m, int *) = so->so_options & optname;
|
break;
|
break;
|
|
|
case SO_PRIVSTATE:
|
case SO_PRIVSTATE:
|
*mtod(m, int *) = so->so_state & SS_PRIV;
|
*mtod(m, int *) = so->so_state & SS_PRIV;
|
break;
|
break;
|
|
|
case SO_TYPE:
|
case SO_TYPE:
|
*mtod(m, int *) = so->so_type;
|
*mtod(m, int *) = so->so_type;
|
break;
|
break;
|
|
|
case SO_ERROR:
|
case SO_ERROR:
|
*mtod(m, int *) = so->so_error;
|
*mtod(m, int *) = so->so_error;
|
so->so_error = 0;
|
so->so_error = 0;
|
break;
|
break;
|
|
|
case SO_SNDBUF:
|
case SO_SNDBUF:
|
*mtod(m, int *) = so->so_snd.sb_hiwat;
|
*mtod(m, int *) = so->so_snd.sb_hiwat;
|
break;
|
break;
|
|
|
case SO_RCVBUF:
|
case SO_RCVBUF:
|
*mtod(m, int *) = so->so_rcv.sb_hiwat;
|
*mtod(m, int *) = so->so_rcv.sb_hiwat;
|
break;
|
break;
|
|
|
case SO_SNDLOWAT:
|
case SO_SNDLOWAT:
|
*mtod(m, int *) = so->so_snd.sb_lowat;
|
*mtod(m, int *) = so->so_snd.sb_lowat;
|
break;
|
break;
|
|
|
case SO_RCVLOWAT:
|
case SO_RCVLOWAT:
|
*mtod(m, int *) = so->so_rcv.sb_lowat;
|
*mtod(m, int *) = so->so_rcv.sb_lowat;
|
break;
|
break;
|
|
|
case SO_SNDTIMEO:
|
case SO_SNDTIMEO:
|
case SO_RCVTIMEO:
|
case SO_RCVTIMEO:
|
{
|
{
|
unsigned long val = (optname == SO_SNDTIMEO ?
|
unsigned long val = (optname == SO_SNDTIMEO ?
|
so->so_snd.sb_timeo : so->so_rcv.sb_timeo);
|
so->so_snd.sb_timeo : so->so_rcv.sb_timeo);
|
|
|
m->m_len = sizeof(struct timeval);
|
m->m_len = sizeof(struct timeval);
|
mtod(m, struct timeval *)->tv_sec = val / hz;
|
mtod(m, struct timeval *)->tv_sec = val / hz;
|
mtod(m, struct timeval *)->tv_usec =
|
mtod(m, struct timeval *)->tv_usec =
|
(val % hz) * tick;
|
(val % hz) * tick;
|
break;
|
break;
|
}
|
}
|
|
|
case SO_SNDWAKEUP:
|
case SO_SNDWAKEUP:
|
case SO_RCVWAKEUP:
|
case SO_RCVWAKEUP:
|
{
|
{
|
struct sockbuf *sb;
|
struct sockbuf *sb;
|
struct sockwakeup *sw;
|
struct sockwakeup *sw;
|
|
|
/* RTEMS additions. */
|
/* RTEMS additions. */
|
sb = (optname == SO_SNDWAKEUP
|
sb = (optname == SO_SNDWAKEUP
|
? &so->so_snd
|
? &so->so_snd
|
: &so->so_rcv);
|
: &so->so_rcv);
|
m->m_len = sizeof (struct sockwakeup);
|
m->m_len = sizeof (struct sockwakeup);
|
sw = mtod(m, struct sockwakeup *);
|
sw = mtod(m, struct sockwakeup *);
|
sw->sw_pfn = sb->sb_wakeup;
|
sw->sw_pfn = sb->sb_wakeup;
|
sw->sw_arg = sb->sb_wakeuparg;
|
sw->sw_arg = sb->sb_wakeuparg;
|
break;
|
break;
|
}
|
}
|
|
|
default:
|
default:
|
(void)m_free(m);
|
(void)m_free(m);
|
return (ENOPROTOOPT);
|
return (ENOPROTOOPT);
|
}
|
}
|
*mp = m;
|
*mp = m;
|
return (0);
|
return (0);
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
sohasoutofband(so)
|
sohasoutofband(so)
|
register struct socket *so;
|
register struct socket *so;
|
{
|
{
|
#if 0 /* FIXME: For now we just ignore out of band data */
|
#if 0 /* FIXME: For now we just ignore out of band data */
|
struct proc *p;
|
struct proc *p;
|
|
|
if (so->so_pgid < 0)
|
if (so->so_pgid < 0)
|
gsignal(-so->so_pgid, SIGURG);
|
gsignal(-so->so_pgid, SIGURG);
|
else if (so->so_pgid > 0 && (p = pfind(so->so_pgid)) != 0)
|
else if (so->so_pgid > 0 && (p = pfind(so->so_pgid)) != 0)
|
psignal(p, SIGURG);
|
psignal(p, SIGURG);
|
selwakeup(&so->so_rcv.sb_sel);
|
selwakeup(&so->so_rcv.sb_sel);
|
#endif
|
#endif
|
}
|
}
|
|
|
